19040942 has 4 divisors (see below), whose sum is σ = 28561416. Its totient is φ = 9520470.

The previous prime is 19040929. The next prime is 19040951. The reversal of 19040942 is 24904091.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4760234 + ... + 4760237.

It is an arithmetic number, because the mean of its divisors is an integer number (7140354).

Almost surely, 2^19040942 is an apocalyptic number.

19040942 is a deficient number, since it is larger than the sum of its proper divisors (9520474).

19040942 is an equidigital number, since it uses as much as digits as its factorization.

19040942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9520473.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 19040942 is about 4363.5927857673. The cubic root of 19040942 is about 267.0316935076.

The spelling of 19040942 in words is "nineteen million, forty thousand, nine hundred forty-two".